1 /* $OpenBSD: t_pkey.c,v 1.17 2021/12/04 16:08:32 tb Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 61 #include <openssl/bn.h> 62 #include <openssl/buffer.h> 63 #include <openssl/objects.h> 64 65 #include "bn_lcl.h" 66 67 int 68 ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num, 69 unsigned char *buf, int off) 70 { 71 int n, i; 72 const char *neg; 73 74 if (num == NULL) 75 return (1); 76 neg = (BN_is_negative(num)) ? "-" : ""; 77 if (!BIO_indent(bp, off, 128)) 78 return 0; 79 if (BN_is_zero(num)) { 80 if (BIO_printf(bp, "%s 0\n", number) <= 0) 81 return 0; 82 return 1; 83 } 84 85 if (BN_num_bytes(num) <= BN_BYTES) { 86 if (BIO_printf(bp, "%s %s%lu (%s0x%lx)\n", number, neg, 87 (unsigned long)num->d[0], neg, 88 (unsigned long)num->d[0]) <= 0) 89 return (0); 90 } else { 91 buf[0] = 0; 92 if (BIO_printf(bp, "%s%s", number, 93 (neg[0] == '-') ? " (Negative)" : "") <= 0) 94 return (0); 95 n = BN_bn2bin(num, &buf[1]); 96 97 if (buf[1] & 0x80) 98 n++; 99 else 100 buf++; 101 102 for (i = 0; i < n; i++) { 103 if ((i % 15) == 0) { 104 if (BIO_puts(bp, "\n") <= 0 || 105 !BIO_indent(bp, off + 4, 128)) 106 return 0; 107 } 108 if (BIO_printf(bp, "%02x%s", buf[i], 109 ((i + 1) == n) ? "" : ":") <= 0) 110 return (0); 111 } 112 if (BIO_write(bp, "\n", 1) <= 0) 113 return (0); 114 } 115 return (1); 116 } 117